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#1
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98 E300 cold, low fuel, rocky idle
Does anyone have a similar experience or can shed any light on the following:
On a "cool" morning, 50/60 or so after a previous. warm day... Fuel in tank is approx. 1/4 Temperature of engine is not warmed up yet ..5 minutes of driving....temp gauge shows "midway" perhaps At stop light or similar, idling gets VERY rough and engine will stall. Only way to prevent stall is to use accelerator for a "high idle" at 1000 rpm or better. Hard to control brake, accel in this matter in, say, a parking lot. Car will stall unless high idle until temp gauge shows 80 degrees -- fully warmed up. Feels like this is moisture somewhere, but my question is how to get rid of it. This has now happened three or four times with the above scenario. thx and best |
#2
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How are the fuel filters? Maybe the strainer?
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#3
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I recall reading something about this in this forum, but don't remember the resolution. Fuel metering from the computer, perhaps, but I'm guessing.
Try a few searches. I know it's here. |
#4
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Also could be your fuel hoses to the shutoff valve that are leaking
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#5
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Its not anything "B" service related
This problem began shortly after the last "B" service....
so do I just start replacing stuff? |
#6
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If it was the fuel filters, then woudn't that affect the idle of the car regardless of circumstance or environment?
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#7
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Well, my 99 E300 stared hard in the mornings. Ran fine after that but starting hard. Turned out to the the fuel lines that leaked and had air coming in. As to your strainer, maybe, after some fuel runs thru it, it clears the blockage a little? Those are things I would start out with since they are cheap. However, since you have done a B service, I would wonder if you had the mileage for a fuel filter replacement.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#8
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This model has a fuel heater mounted near the injection pump, and the computer controls the flow to it. If you have a leaking plastic fuel line going to or from the heater (very likely) that would explain why you have rough running cold and fine when hot. The fittings on these lines get very brittle and will leak with the slightest provocation.
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Rick Miley 2014 Tesla Model S 2018 Tesla Model 3 2017 Nissan LEAF Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro Chain Elongation References |
#9
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Rick, thanks so much for your reply. Wouldn't a leaking fuel line result in lower miles per tank....I've seen zero decline in miles per tank or mpg.....
thx Quote:
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#10
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It could be sucking air in but not leaking any fuel out. Start the enigne and watch for bubbles in the those translucent plastic lines. If they have gotten too dark brown for you to see through them, then they should be replaced anyway.
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Rick Miley 2014 Tesla Model S 2018 Tesla Model 3 2017 Nissan LEAF Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro Chain Elongation References |
#11
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My car was sucking air but not leaking fuel. Mileage was about normal. Cold starts were not good! Check the plastic fuel lines.
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#12
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any further updates here?
Quote:
I have a rough idle problem also. I recently had a huge fuel leak - see forum 99 e300td injector pump leak I replaced the following: *6 delivery valve o-rings & copper washers *most of the fuel lines (couldn't access one under intake manifold #119 & Phil forgot to ship the longer one from shutoff valve #83) see pic Present situation: *Car starts fine *seems to idle very rough when cool or cold (I notice door shake visibly and change rattle in ashtray) *rough idle goes away when in gear and as I accelerate (still cold motor) *rough idle is very strong again as I brake or stop *overall mileage is about normal 27-28 mpg (maybe a little reduced, only on 1st tank) *rough idle is usually less bad when motor is warm/ hot *no visible leaks anymore, very little/ no air in fuel lines- it's been 600 miles since previous repairs. ***car sometimes seems to "skip" almost sounds like it's missing a cylinder... sometimes @ stop but not always, with a warm/ hot motor*** >>> I have no idea what this is, but this one worries me the most<<< Questions? Help? Advice? 1. could I have gotten dirt or debris in one of the delivery valves and plugged it? 2. How could I check this? 3. Is it something else or different (air in line, leaky/ bad plastic fuel hose or o-ring) 4. I saw a thread on Lubro moly diesel purge or purging injectors with biodiesel. Is this my best next step? A good PM? or just something else to worry me? Thanks in advance Phil
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Phil Previously loved variety, but I miss the 99 F350 PSD- 37k, traded, damn Current stable 98 E-300 TurboDiesel, 253k http://www.facebook.com/people/Philip-Underwood/762882374 Last edited by 92497pmu; 09-26-2006 at 12:03 PM. |
#13
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update as requested
It turned out to be the fuel lines as was suggested in this forum.....not fuel going OUT, but air coming IN. I replaced all the fuel lines and voila no more problemo.
probably a good idea to do anyway at 100k miles. Note, also a good idea to do at glow-plug-replacement time, since the manifold has to be removed in both cases. |
#14
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How about the injectors? Mine idles smoother since I took them out and had them tested. One of them failed because of poor spray pattern and lower pop off pressure. Clean them all out and they now are smoother and better acceleration. Also removed the MAF SENSOR, not the housing only. Took the sensor out, cleaned it with electronic cleaner and then washed out the MAF housing. Also helps a bit.
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
#15
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Quote:
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01 Ford Excursion Powerstroke 99 E300 Turbodiesel 91 Vette with 383 motor 05 Polaris Sportsman 800 EFI 06 Polaris Sportsman 500 EFI 03 SeaDoo GTX SC Red 03 SeaDoo GTX SC Yellow 04 Tailgator 21 ft Toy Hauler 11 Harley Davidson 883 SuperLow |
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